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Single Family ResidenceResidential
$301,972$331 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $115,000 on Aug 30, 2013

3909 E 21ST ST

SIOUX FALLS, SD 57103
4
Beds
2
Baths
912 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1963
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$302K
$272K low$332K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$115,000 · Aug 30, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,533 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$262,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$25,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$236,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$196,200

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyMINNEHAHA
Lot (acres)The size of the land the home sits on, from county records.0.15
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 248 ft²Patio · 248 ft²

Transaction History(10)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(2)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Cleveland Elementary SchoolD-
Elementary · Grades EE–5 · 0.4 mi
H
Washington High SchoolC+
High · Grades 9–12 · 1.4 mi
M
Ben Reifel Middle SchoolB+
Middle · Grades 6–8 · 2.2 mi

District: Sioux Falls School District

Neighborhood · ZIP 57103These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.94
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.22

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.37,885
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,755 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,831
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,397
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.25 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

3909 E 21st St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Costs more per square foot than 91% of homes in Sioux Falls 57103
  • Smaller than 85% of homes in Minnehaha County
  • Has a smaller lot than 80% of homes in Minnehaha County
  • Older than 71% of homes in Minnehaha County

What homes are worth in Sioux Falls 57103

Each bar is how many homes fall in that price range. The marker is this home.

This home
$152K$803K

This home is worth more than 55% of homes in Sioux Falls 57103.

How it measures up in Sioux Falls 57103

The dot is this home. The mark in the middle is the typical home in Sioux Falls 57103.

Estimated value$301,972
CheaperTypical $287,457Pricier

Pricier than 55% of homes nearby

Price per ft²$331
CheaperTypical $262Pricier

Pricier than 91% of homes nearby

Living area912 ft²
SmallerTypical 1,148 ft²Bigger

Bigger than 21% of homes nearby

Lot size0.15 ac
SmallerTypical 0.2 acBigger

Bigger than 24% of homes nearby

Year built1963
OlderTypical 1976Newer

Newer than 34% of homes nearby

How 3909 E 21st St ranks against every home in each area.
MeasureThis homeSioux Falls 57103Minnehaha County
Estimated valuepricier than$301,97255% of homes43% of homes
Price per ft²pricier than$33191% of homes82% of homes
Living areabigger than912 ft²21% of homes15% of homes
Lot sizebigger than0.15 ac24% of homes20% of homes
Year builtnewer than196334% of homes29% of homes

About 3909 E 21st St

How much is 3909 E 21st St, Sioux Falls, SD worth?

The TopHap Estimate for 3909 E 21st St, Sioux Falls, SD is $301,972 as of Sep 24, 2026. The likely range is $271,587 to $332,357. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3909 E 21st St, Sioux Falls, SD last sell?

3909 E 21st St, Sioux Falls, SD last sold on Aug 30, 2013 for $115,000, according to the county's recorded deed. TopHap holds 7 recorded sales for this parcel.

How big is 3909 E 21st St, Sioux Falls, SD?

3909 E 21st St, Sioux Falls, SD has 4 bedrooms, 2 bathrooms, 912 square feet of living space and a 0.15-acre lot.

When was 3909 E 21st St, Sioux Falls, SD built?

3909 E 21st St, Sioux Falls, SD was built in 1963, making it 63 years old. It is a ranch home. The building has 1 story.

What schools serve 3909 E 21st St, Sioux Falls, SD?

3909 E 21st St, Sioux Falls, SD is assigned to Cleveland Elementary School (elementary), rated D-; Washington High School (high), rated C+; Ben Reifel Middle School (middle), rated B+. All sit in Sioux Falls School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3909 E 21st St, Sioux Falls, SD compare to other homes in Sioux Falls 57103?

Among the 11,079 homes in Sioux Falls 57103, it is worth more than 55% of them ($301,972 against a typical $287,457), its price per square foot is higher than 91% of them ($331 against a typical $262), it is bigger than 21% of them (912 ft² against a typical 1,148 ft²), its lot is bigger than 24% of them (0.15 ac against a typical 0.2 ac) and it is newer than 34% of them (1963 against a typical 1976). Measured against all of Minnehaha County, it is worth more than 43% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 3909 E 21st St, Sioux Falls, SD?

The 2025 property tax bill for 3909 E 21st St, Sioux Falls, SD was $3,533. The county assessed it at $262,000.

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